This application relates to the field of communications technologies, and discloses a communication method and a communication apparatus, to reduce service delay due to uplink data cannot be directly sent by a terminal when the terminal is in an inactive state. The method in this application includes: receiving a first message from a first access network device; then releasing or suspending a configured dedicated signaling radio bearer SRB and resetting protocol entities corresponding to a configured data radio bearer DRB. The first message is used to indicate to a terminal to enter a radio resource control (RRC) inactive state, and the first message carries an identifier of the terminal in the radio resource control (RRC) inactive state and radio access network notification area (RNA) information.

This application relates to the field of communications technologies, and discloses a communication method and a communication apparatus, to reduce service delay due to uplink data cannot be directly sent by a terminal when the terminal is in an inactive state. The method in this application includes: receiving a first message from a first access network device; then releasing or suspending a configured dedicated signaling radio bearer SRB and resetting protocol entities corresponding to a configured data radio bearer DRB. The first message is used to indicate to a terminal to enter a radio resource control (RRC) inactive state, and the first message carries an identifier of the terminal in the radio resource control (RRC) inactive state and radio access network notification area (RNA) information.

Aspects of the present disclosure include methods, apparatuses, and computer readable media for generating a plurality of cellular vehicle-to-everything (CV2X) message segments at a first layer based on an upper layer message at a second layer, wherein each message segment of the plurality CV2X message segments includes a message block of a plurality of message blocks and a redundant block of a plurality of redundant blocks, transmitting the plurality of message blocks to a receiving UE, and transmitting the plurality of redundant blocks to the receiving UE after transmitting the plurality of message blocks.

Aspects of the present disclosure include methods, apparatuses, and computer readable media for generating a plurality of cellular vehicle-to-everything (CV2X) message segments at a first layer based on an upper layer message at a second layer, wherein each message segment of the plurality CV2X message segments includes a message block of a plurality of message blocks and a redundant block of a plurality of redundant blocks, transmitting the plurality of message blocks to a receiving UE, and transmitting the plurality of redundant blocks to the receiving UE after transmitting the plurality of message blocks.

A method and apparatus are disclosed. In an example from the perspective of a first device, a grant is received from a network node. The grant allocates a set of sidelink data resources. One or more sidelink data transmissions are performed on the set of sidelink data resources. A second feedback information associated with the one or more sidelink data transmissions is received and/or detected. An uplink resource is derived. A first feedback information is transmitted on the uplink resource to the network node. The first feedback information is set based upon the second feedback information.

A method and apparatus are disclosed. In an example from the perspective of a first device, a grant is received from a network node. The grant allocates a set of sidelink data resources. One or more sidelink data transmissions are performed on the set of sidelink data resources. A second feedback information associated with the one or more sidelink data transmissions is received and/or detected. An uplink resource is derived. A first feedback information is transmitted on the uplink resource to the network node. The first feedback information is set based upon the second feedback information.

A method and apparatus for discarding a buffered data in a wireless communication system is described. A central unit (CU) user plane (UP) of a gNB receives a buffered data discard indication from a CU-control plane (CU-CP) of the gNB, and discards buffered data for a user equipment (UE) based on the buffered data discard indication. Even after discarding the buffered data, UE context is still kept. The CU-CP is a logical node constituting the gNB that hosts a radio resource control (RRC) protocol and a packet data convergence protocol (PDCP)-C protocol, and the CU-UP is a logical node constituting the gNB that hosts a PDCP-U protocol.

A method and apparatus for discarding a buffered data in a wireless communication system is described. A central unit (CU) user plane (UP) of a gNB receives a buffered data discard indication from a CU-control plane (CU-CP) of the gNB, and discards buffered data for a user equipment (UE) based on the buffered data discard indication. Even after discarding the buffered data, UE context is still kept. The CU-CP is a logical node constituting the gNB that hosts a radio resource control (RRC) protocol and a packet data convergence protocol (PDCP)-C protocol, and the CU-UP is a logical node constituting the gNB that hosts a PDCP-U protocol.

The embodiments of the present disclosure provide a sidelink operation method and a terminal. The method includes: acquiring sidelink configuration information, wherein the sidelink configuration information includes at least one of feedback configuration information and measurement configuration information; performing at least one of a measurement operation and a feedback operation on sidelink according to the sidelink configuration information.

The embodiments of the present disclosure provide a sidelink operation method and a terminal. The method includes: acquiring sidelink configuration information, wherein the sidelink configuration information includes at least one of feedback configuration information and measurement configuration information; performing at least one of a measurement operation and a feedback operation on sidelink according to the sidelink configuration information.